EP3927903A1 - Quick-coupling system having a gripper as locking element - Google Patents
Quick-coupling system having a gripper as locking elementInfo
- Publication number
- EP3927903A1 EP3927903A1 EP20709504.3A EP20709504A EP3927903A1 EP 3927903 A1 EP3927903 A1 EP 3927903A1 EP 20709504 A EP20709504 A EP 20709504A EP 3927903 A1 EP3927903 A1 EP 3927903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling part
- gripper
- boom
- locking element
- engagement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 99
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 99
- 230000008878 coupling Effects 0.000 claims abstract description 96
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
- E02F3/404—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/963—Arrangements on backhoes for alternate use of different tools
- E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine
Definitions
- the invention relates to a quick coupling system for the detachable attachment of attachments to a
- Hydraulic excavator wherein the quick coupling system can be arranged on a boom of the hydraulic excavator and is hydraulic with a hydraulic system of the excavator
- boom coupling part has connectable boom coupling part and at least one attachment coupling part which can be arranged on an attachment, the boom coupling part being a hydraulic
- Attachment coupling part is engageable and wherein the boom coupling part is spaced apart from the
- the locking element can be hydraulically displaced and in this way engages positively in the form-locking element.
- the engagement element is usually a bolt which is fixed on opposite bolt ends on a suitable carrier element of the boom coupling part or the attachment coupling part.
- correspondingly adapted second or first engagement element is usually designed in the shape of a hook or has a hook-shaped cross section, the bolt in a correspondingly adapted recess of the hook-shaped
- Engaging elements can be arranged and fixed there in a form-fitting manner. Hydraulically displaceable bolts, which can be displaced into corresponding recesses in the form-locking element, are usually used as locking elements.
- the grippers are arranged on the boom coupling part and can be used as
- Gripping tools can be used if there is no attachment or no attachment coupling part with attachment with the
- the grippers are also operated hydraulically, so that for the
- the object of the invention is to further develop the quick coupling systems known from the prior art in such a way that the simplest possible construction of the quick coupling system is also made possible in connection with a gripper arranged on the boom coupling part.
- the locking element is designed as a gripper and that the form-fit element protrudes into a gripping area of the gripper when the first and second engagement elements are in engagement with one another as intended, the gripper as a gripping tool, for example, for picking up tree trunks or rails is provided and usable if no attachment coupling part is connected to the boom coupling part.
- the gripper as a gripping tool, for example, for picking up tree trunks or rails is provided and usable if no attachment coupling part is connected to the boom coupling part.
- the quick coupling system with gripper can be operated in this way with just one hydraulic connection for the gripper.
- the gripper can only be used if there is no attachment on the
- Boom coupling part is attached because the gripper is covered by the attachment when the attachment is mounted.
- the gripper has no function when the attachment is mounted.
- the quick coupling system is not restricted, but rather the previously functionless gripper is used as a locking element when the attachment is mounted. In this way, the quick coupling system with gripper can be manufactured and manufactured significantly more easily and thus cost-effectively
- the gripper has at least two gripping arms which are hydraulically pivoted relative to one another in a gripper bearing, the gripping area being formed between the gripping arm when the gripping arms are in a
- Swiveling-out position are arranged and wherein the gripping arms bear against the form-fitting element and exert a predetermined gripping force acting in the direction of the gripper bearing on the form-fitting element when the gripping arms are hydraulically displaced into a gripping position.
- the gripping arms bear against the form-fitting element and exert a predetermined gripping force acting in the direction of the gripper bearing on the form-fitting element when the gripping arms are hydraulically displaced into a gripping position.
- Form-fitting element rests positively on the gripper arms and the gripper bearing and is pressed in the direction of the gripper bearing.
- the form-fit element is advantageously rigidly connected to a carrier element of the add-on coupling part, with the add-on coupling part on the carrier element
- the first engagement element is advantageously rigid on a corresponding one Arranged carrier element of the boom coupling part, wherein the gripper bearing is rigid with the carrier element of the
- the quick coupling system is advantageously rigidly connected to the boom or is pivotable and / or
- the first engagement element is advantageously immovable relative to the gripper bearing.
- Engagement element is advantageously rigidly connected to a carrier element of the boom coupling part on which the gripper bearing is also arranged.
- the form-locking element and / or the second engagement element can be rigidly fixed on the attachment.
- the form-fit element and the second engagement element are advantageously not displaceable relative to one another.
- Form-fit element and the second engagement element can either be on a common carrier element of the
- Attachment coupling part is set or can directly with be connected to the attachment, for example by a screw or welded connection.
- the invention provides that the form-fit element of a when the intended arrangement of the
- the end of the form-fit element is designed to taper in order to support a centering movement of the form-fit element when the gripper is closed.
- the form-fit element is advantageously designed to taper conically from the form-fit element end, so that the conically-shaped form-fit element end section can simply slide along a gripper arm inner surface when the gripper arms are closed.
- the object set at the beginning is also achieved by an excavator with a quick coupling system as described above
- Boom coupling part is arranged on the boom in such a way that the gripper is arranged on a side of the boom facing away from a driver's cab of the excavator.
- the quick coupling system or the boom coupling part is connected to the boom of the excavator via a tilt rotator. But it is also possible and according to the invention
- FIG. 1 is a schematically illustrated side view of an arranged on a boom of an excavator
- the boom coupling part is not connected to the attachment coupling part
- FIG. 2 shows a side view of the one shown in FIG. 1, shown schematically in detail
- FIG. 3 shows a front view of the FIG. 2 shown schematically in detail
- a quick coupling system 1 is shown.
- the quick coupling system 1 has a mounted on a boom 2 of an excavator 3
- Boom coupling part 4 is hydraulically connected to a hydraulic system, not shown, of excavator 3.
- the boom coupling part 4 has a first pin-shaped engaging element 7 which is positively connected to a second engaging element 8 of the
- Attachment coupling part 6 can be brought into engagement.
- the second engagement element 8 has two spaced apart hooks 9, which grip around the bolt-shaped first engagement element 7 in a form-fitting manner when the boom coupling part 4 is arranged on the attachment coupling part 6 as intended.
- the boom coupling part 4 has a hydraulically arranged at a distance from the first engagement element 7
- the add-on coupling part 6 has a spaced apart from the second engagement element 8
- the gripper 11 has two gripper arms 15 that are hydraulically pivoted relative to one another in a gripper bearing 14.
- the gripping area 13 is formed between the gripping arms 15.
- the first engagement element 7 and the gripper bearing 14 are rigidly arranged on a carrier element 16 of the boom coupling part 4.
- Form-fit elements 12 are on the attachment 5
- the form-fit element 12 is designed to taper from a form-fit element end 17 to a
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019104321.2A DE102019104321A1 (en) | 2019-02-20 | 2019-02-20 | Quick coupling system |
PCT/EP2020/054507 WO2020169746A1 (en) | 2019-02-20 | 2020-02-20 | Quick-coupling system having a gripper as locking element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3927903A1 true EP3927903A1 (en) | 2021-12-29 |
EP3927903B1 EP3927903B1 (en) | 2022-11-30 |
Family
ID=69770862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20709504.3A Active EP3927903B1 (en) | 2019-02-20 | 2020-02-20 | Quick-coupling system having a gripper as locking element |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3927903B1 (en) |
DE (1) | DE102019104321A1 (en) |
WO (1) | WO2020169746A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9101150A (en) * | 1991-07-02 | 1993-02-01 | Verachtert Bv | COUPLER. |
JP2693336B2 (en) * | 1992-02-26 | 1997-12-24 | 株式会社クボタ | Mounting device for tractor and work implement |
US5472308A (en) * | 1994-04-26 | 1995-12-05 | Somero; Nick J. | Grapple mount |
JP2006037379A (en) * | 2004-07-23 | 2006-02-09 | Soushiyu Aikawa | Adaptor for attachment connection and disconnection |
GB2471720A (en) * | 2009-07-10 | 2011-01-12 | Patrick Roache | Excavator quick hitch mechanism |
KR101394863B1 (en) * | 2013-03-25 | 2014-05-13 | 이소정 | A grab link device for fastening the bucket |
KR101353244B1 (en) * | 2013-08-16 | 2014-01-20 | 김수철 | An excavator having removable forefinger |
US9611616B2 (en) * | 2014-12-24 | 2017-04-04 | Shun Maruyama | Bucket attaching structure of construction machine and construction machine |
-
2019
- 2019-02-20 DE DE102019104321.2A patent/DE102019104321A1/en active Pending
-
2020
- 2020-02-20 EP EP20709504.3A patent/EP3927903B1/en active Active
- 2020-02-20 WO PCT/EP2020/054507 patent/WO2020169746A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102019104321A1 (en) | 2020-08-20 |
EP3927903B1 (en) | 2022-11-30 |
WO2020169746A1 (en) | 2020-08-27 |
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